In the steady state, cardiac output equals. venous return. Factors that cause hypereffective heart. Sympathetic stimulation can increase the effectiveness of the heart via: (2) increasing the strength of heart contraction. Factors that can cause a hypoeffective heart: (1) coronary artery blockage.
Thursday, March 19, 2015 - 11:09. Ed Sheeran has added yet another amazing accolade to his collection with the news that his global smash hit sophomore album X has hit the 2 million sales mark, joining a select band of chosen superstars to hit the same achievement.
By Bill Wyman. January 4, 2013. In Michael Jacksonâs New York Times obituary, the singer is credited with selling a hundred million copies of his most popular album, âThrillerââand with selling an âestimatedâ seven hundred and fifty million records worldwide over his career.